There is a common misconception that intelligence is synonymous with IQ. "Intelligence Quotient" or IQ was originally built to predict the academic aptitude of schoolchildren, and is nothing more than a measure of the skills needed for academic success. Intelligence, however, is a much broader concept that encompasses a person's level of skill for any of a number of subjects.

Knowledge is the accumulation of information whereas intelligence is one's ability to process information to render good decisions.

The principles that make someone a master in the chief executive role deal with whether or not they can thrive in an environment of ongoing duress, and teach others how to do so.

We frequently hear how essential it is for someone to think "outside the box," but what actually determines one's facility for doing so? In other words, what skills make someone a creative thinker? Typically, creative thinkers can view issues from multiple perspectives, define problems in several different ways, and anticipate likely obstacles. Someone's aptitude for these skills determines how well he or she will perform as a creative thinker.

We never ask candidates to demonstrate their skill. We ask lots of questions about past experience, but simply looking at the results of their decisions does not let us understand the process that they used to make the choice in the first place. A good analogy is sports. If you wanted to know how well a person plays basketball, for example, you could look at statistics like shooting percentage or blocked shots. But, this is just an historical account of how well the individual played in the past - the numbers do not tell us much about how that individual plays basketball now.

Often people freeze under severe pressure, but that says nothing about their ultimate capability- only their level of preparation.

Research has shown that one's level of intelligence is the single most predictive component of professional success - better than any other ability, trait, or even job experience. Yet, too often, employees are selected because of their likeability, presence, or charisma.